Complete the sentences with the first conditional form of the verbs in parentheses.
a) Mary will save more energy if she (change) the light bulbs in her house.
b) Schools will not help to reduce environmental impact if they (not educate) children about their responsibilities toward the environment.
c) If we (not protect) the forests, lots of animals (lose) their natural habitat.
d) How will you (see) it if there (not be) any clean water to drink?
e) If we (collect) the trash on the beach, it will (help) to reduce environmental pollution.